Samsung's Galaxy S7 and S7 smartphones went on sale today , sporting a new design, improved specs, and one highly-anticipated feature - water resistance.

The device has a classification known as IP68, which means it can be submerged in water to a depth of roughly 1.5m for 30 minutes.

So it will survive a dip in the sink or down the loo, and it won't break if you pour a drink over it, but you probably don't want to take it swimming.

Unlike the Galaxy S5, which launched in 2014, there are no ugly rubber caps over the charging ports. Samsung has made water resistance integral to the design of the phone, and all the ports are sealed internally.

This feature could be a lifesaver for the more clumsy among us - who may have spent more than one afternoon with our phone in a bowl of rice, trying to dry it out after an unfortunate mishap in the bathroom.

However, we understand you might be reluctant to run the risk of dunking your own £569 gadget in a bucket of water - so we've done it for you.

In the video above, we carry out four highly-scientific tests, to see just how water-resistant the Galaxy S7 really is.